HttpHandlerDeployment.java

@Deployment(testable = false)
public static Archive<JavaArchive> createDeployment() {
	return ShrinkWrap.create(UndertowHttpHandlerArchive.class).from(new HttpHandler() {
           @Override
           public void handleRequest(final HttpServerExchange exchange) throws Exception {
               exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain");
               exchange.getResponseSender().send("Hello World");
           }
       });
}